Impossible to answer without a detailed description.
The value of a World War II Browning FN High Power pistol depends on its condition. They can be found for sale from $1,100 to $1,800.
You will have to call Browning with the serial number to find out.
10-200 usd
25-250 usd
100-1000 USD and up depending on specifics.
50-500 uSD
60-550 usd
100-1000 USD and up depending on specifics
50-500 usd
Not a one. FN made firearms for Browning.
FN
No